19222698187442 has 8 divisors (see below), whose sum is σ = 28841168569500. Its totient is φ = 9608975330944.

The previous prime is 19222698187409. The next prime is 19222698187523. The reversal of 19222698187442 is 24478189622291.

It can be written as a sum of positive squares in 2 ways, for example, as 18377605921921 + 845092265521 = 4286911^2 + 919289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186871267 + ... + 1186887462.

Almost surely, 2^{19222698187442} is an apocalyptic number.

19222698187442 is a deficient number, since it is larger than the sum of its proper divisors (9618470382058).

19222698187442 is a wasteful number, since it uses less digits than its factorization.

19222698187442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373762780.

The product of its digits is 55738368, while the sum is 65.

The spelling of 19222698187442 in words is "nineteen trillion, two hundred twenty-two billion, six hundred ninety-eight million, one hundred eighty-seven thousand, four hundred forty-two".